Abstract

The electrochemical reduction of maleimide has been investigated in the pH range 0–14 at a variety of electrode materials. The reaction scheme was found to fall into three distinct sections, depending upon the pH at which the reduction was performed. At low pH the reduction product was found to be succinimide, and the mechanism of its formation is described. At higher pH values, the hydrolysis of starting materials complicates the interpretation of the electrochemical measurements, but nevertheless the overalls reduction mechanism could be deduced. Polarographic data complement information obtained from rotating disc experiments, and comparison is made with the electrochemical reduction of phthalimide.

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